Growth performance of metals mixture stressed Catla catla in semi-intensive pond culture system
2011
Hussain, S.M. (Government Coll. Univ., Faisalabad (Pakistan). Dept. of Wildlife and Fisheries) | Javed, M. (University of Agriculture, Faisalabad (Pakistan). Dept. of Zoology and Fisheries) | Afzal, M. (University of Agriculture, Faisalabad (Pakistan). Dept. of Zoology and Fisheries) | Abdullah, S. (University of Agriculture, Faisalabad (Pakistan). Dept. of Zoology and Fisheries) | Javid, A. (University of Veterinary and Animal Sciences, Lahore (Pakistan). Dept. of Wildlife and Ecology) | Javid, T. (University of Agriculture, Faisalabad (Pakistan). Dept. of Zoology and Fisheries) | Hussain, M. (University of Agriculture, Faisalabad (Pakistan). Dept. of Zoology and Fisheries) | Raza, S.A. (Fish Biodiversity Hatchery Chashma, Mianwali (Pakistan). Dept. of Fisheries)
Heavy metals in our natural riverine system are present in the forms of mixture not as single metal. Therefore, this study was planned to investigate the growth responses of metals mixture stressed Catla catla in glass aquaria and semi-intensive pond culture system. The whole experiment was conducted in two phases. During phase-I fingerlings of C. catla were divided into two groups, one group was exposed to sub-lethal concentrations of metals mixture (Fe, Zn, Pb, Ni & Mn), while other was kept un-stressed as control in glass aquaria for 30 days. During stress period, treated fish showed significantly lower growth, fork and total lengths gain as compared to control medium that showed better growth, fork and total length gain. At the end of phase-I both stressed and control fish were shifted to earthen ponds for study of growth parameters in semi-intensive culture for six months. Statistical analysis revealed that the months and interaction i.e., months x treatments had statistically significant effect on growth performance of C. catla in terms of weight, fork and total length increments. Sub-lethal stress of metals mixture to C. catla in the glass aquaria and semi-intensive pond culture showed significantly lower growth in terms of wet weight increment as compared to control fish. Significantly better growth in terms of wet weight, fork and total lengths gain by C. catla was observed in semi-intensive culture as compare to glass aquaria.
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Эту запись предоставил National Agricultural Research Centre